Apparatus for feeding and clinching clinch-on nuts and the like



F. N. ROSS Aug. 19, 1941.

APPARATUS FOR FEEDING AND GLINGHING CLINCH-ON NUTS AND THE LIKE s sheets-sheet 1 Filed July 21, 1957 IV a 39 109 /07 a f E 69 irederlZ/f/WZ0$ Fly] F. N. ROSS Aug. 19, 1941.

APPARATUS FOR FEEDING AND CLINCHING CLINCH-ON NUTS AND THELIKE Filed July 21, 1957 3 Sheets-Sheet 2 Aug. 19, 1941. 2,253,051

APPARATUS FOR FEEDING AND CLINGHING CL'INCH-ON NUTS AND THE LIKE FL N. ROSS 3 Sheets Sheet 5 Filed July 21, 1937 FrederiefiA/floss Patented Aug. 19, 1941 v UNITED STATES PATENT OFFICE APPARATUS FOR FEEDING AND CLINCHING CLINCH-ON NUTS AND THE LIKE Application July 21, 1937, Serial No. 154,794

8 Claims.

My invention relates to apparatus for applying clinch-on nuts and the like to sheet material, usually steel sheets, and preferably including means for automatically feeding a succession of clinchon nuts and the like to means for automatically clinching-on to sheet material the clinch-on nuts and the like.

Clinch-on nuts are applied to sheet material, usually steel sheets or formed steel sheet parts, for example in the manufacture of automobile bodies. Such manufacture is carried on by mass production methods, and a satisfactory machine for applying clinch-on nuts to steel sheet material in such manufacture must be capable of high. speed and easy operation, and must also have a construction and arrangement of its parts, so a to minimize the possibility of jamming, and so as to enable breaking jams which may occur with no damage in most instances to the clinchon nut applying machine.

Prior to the present improvements, clinch-on nut applying machines in use have not been entirely satisfactory, either in speed or case of operation, or in performance with respect to jams.

The objects of the present improvements include the provision of improved apparatus adapted to be incorporated in a machine for applying clinch-on nuts and the like and including improved clinching means and improved means for feeding clinch-on nuts and the like to the clinching means, whereby the machine is capable of high speed and easy operation, with minimized jamming, and with relative ease in breaking Jams.

Further objects of the improvements include theprovision of improved general and detail arrangement of certain parts of the apparatus for attaining simplification, facilitating the manufacture, improving theoperation, and facilitating the maintenance of the apparatus.

The foregoing and other objects are attained by the apparatus, parts, combinations and subcombinations, which comprise the present invention, and the nature of which is set forth in the following general statement, and preferred embodiments of which are particularly and distinctly pointed out and set forth in the appended claimsforming part'hereof.

The nature of the improved apparatus of the present invention may be stated in general terms as including improved reciprocating short-stroke anvil means and improved reciprocating peen plunger means, end faces of the anvil means and the peen plunger means being opposite each other for applying clinching pressure.

Improved reciprocating short-stroke tucker feed means are provided for feeding a succession of clinch-on nuts and the like onto the clinching face of the anvil means when the anvil means is displaced from its force applying position. i p

The peen plunger means is arranged to move towards the anvil means for applying clinching pressure when the anvil means is displaced towards the peen plunger means, preferably in a stationary position with back-up means opposing the clinching force and movement of the peen plunger means. i l

The peen plunger means is preferably provided with motor drive means. y

The anvil means has preferably cam reciprocating and back-up means, and is preferably provided with independent preferably resiliently energized motor means for operating its reciprocating and back-up means.

The operation of the motor means for the anvil means is preferably controlled by the motor drive means for the peen plunger means, without any drive connection between the two motor means.

The anvil mean and associated'parts are furthermore arranged to facilitate the insertion and removal of a sheet into and out of position in the apparatus for having one or more clinchon nuts applied thereto with a minimium of physical effort on the part of the operator.

The means. and parts of the apparatus furthermore include improved details of construction and arrangement as are hereinafter set forth and claimed.

By way of example, embodiments of the improved apparatus hereof are included in a clinchon nut applying machine illustrated in the accompanying drawings forming part hereof, in which Figure lris a side elevation of the complete machine;

Fig. 2; anxenlarged fragmentary view similar to .Fig. 1 of the upper portions of the machine, withcertain parts broken away or shown in sectionfor the purpose of clearly illustrating the present improvements, the operating parts of the machine being shown in their relative positions, with the anvil of the present invention in the Up position with a clinch-on nut grasped by its 7 with certain parts broken away or shown in section;

Fig. 4, a view similar to Fig. 2, but with the operating parts of the machine in their relative positions when the anvil is in its Down position, after the operation of applying by clinching-on, the nut shown on the upper end of the anvil in Fig. 2, to asheet of steel, and with another nut fed into position on the upper end of the anvil by operation of the improved tucker nut feed means of the present invention;

Fig. 5, a fragmentary front view thereofsimilar to Fig. 3;

Fig. 6, a fragmentary sectional-view thereof.

as on line 6-6, Fig. 4; i

Fig. 7, a fragmentary plan view thereof as online 1-1, Fig. 2 looking from above'downwardly upon the improved tucker nut feed means and V the improved anvil;

Fig. 8, an enlarged transverse sectional view thereof as online 8 -43, Fig. 7; and 4 Fi -,9; a View similar to Figs. 3 and 5,- with the parts -as shown in Fig. 5, in their. relative posiv tions after the anvil has returnedfto the Up position, elevating the sheet and applied nut of Fig.5, upon the top of the nut grasped in the anvil;;so as to permit easy andunrstricted removal of the sheet and applied nut.

Similar numerals refer to similar parts throughout the drawings.

7 The: machine for applying clinch-on'nuts, illusproved anvil mearis-indi'cated gene'muy by I 3; the I improved plunger means indicatedgenerally by M, and the improved operating and other associatd parts therefor herinafte'rdscribe'cl in deflail-.7

Ihe"machi'ne'lfl furthermore includes. a drive motor indicated generally by l5'which as'shown' is'mounte'd in the base frame Hbelow the top c r The-{housingand mounting means I2 operativelymounts the main drive shaftl Gas by bear= ings ITandIS; 1 r

The main drive shaft I6 extends outwardly at therear side of themachinel0beyondthe housing and mountingmeans [2, and'therear end 2l-of-theshaft IB-beyond-the housing and mounting means .12 has adriven-pulley 22. secured thereon which is operatively associated through usual clutch. means not. showneand through usual belt means shown in part at 23- withthe. shaft 16 and with a drive pulley; not shown on the shaftnot shown of the motor} 5.

The machine 101 s. provided in a usual manner with actuating means, as shown.a: foot pedal.24, which is operatively associated in a usualjmanner with" the clutch not shown, so that when the motor 15 is running, a downwardpressure applied 1 to the foot pedal 24 will cause onerevolution of the main shaft l6. I 1 v The machine In is also provided: with hopper means indicated generally by 25, which a'reoper- I ative in a usual manner to deliver a succession of clinch-on nuts Nto the improved'short-stroke T means 54 being operatively mounted in the upper side portions indicated generally by 30 of the U housing and mounting means l2.

The upper end face 3| of the anvil means is opposite the lower end faces 32 of the peen l' plunger means for applying clinching pressure therebetween.

'Iheimproved short-stroke tucker feed means 26 is provided for feeding a succession of clinchon nutsN onto the upper clinching end face 31 clinching pressure between the plunger face 32' and the anvil face 3| when theanvil means I3 is displaced towards the peen plunger means, preferably in a stationary Up position as shown in Fig. 2, in which the" anvil means. i3 is preferably provided with back-up means indicatedgenerally by 33 opposing the clinching force or movement of the peen plunger means I4.

I The peen plunger means [4 reciprocates,pref-' erably vertically within and between the inner faces of-guide tube portions 34 of the upper sideportions 33 of the U housing and mounting means 12. I

The preferred short-stroke reciprocation 0f the peen plunger means l4v is preferably effected from, the electric motor driven shaft 3, the forward end 35 of the shaft l6 being providedwith a short-stroke operative connection indicated generally by 36 with the upper end 31 'of'the peen plunger means I4 for effecting short-stroke re"- cip'rocation of the peen plunger means l4 by retation' of the'shaft I ES.

As shown, the operative connection 36f between the shaft l6 and the peen plunger means [4 includes a forwardly extending crank. pin 38 provided on theforward extremity of the forward end 35 of the shaft l5, and a slide block 39"is arranged for transverse sliding in a transverse guide groove 49 formed in the upper end 31'of the peen plunger means M, the crank pin 38'extending into a suitable bore provided in the slide block 39; whereby short-strokereciprocation of the peen plunger means is effected when the shaft l5 rotates. a

The anvil means l3 reciprocates preferably vertically within and between'the inner faces of guide portions 4'! of the lower side portions 29 of the. U housing and mounting means I2.

'The preferred short-strok reciprocation of the anvil means I3'is preferably effected by reciproeating cam means indicated generally by 42 which also preferably include the back-up means 33. a

Independent preferably resiliently energized 7 motor means 43' is provided 1 for actuating the. reciprocatingrcam and back-up means 42 and also preferably for actuating the tucker feed means 26.

The operation of the motor means 43 for the cam and back-up meansi42 andthetucker means 26 is preferably controlled by the motor drive means for the peen plunger means l4, preferably as shown by cam and follower means indicated generally by 44 interposed between the peen plunger drive shaft l6 and the motor means 43 as hereinafter set forth in detail, the cam and follower means 44 being arranged so that there is no drive connection between the shaft l6 and the motor means 43, the function of the cam and follower means 44 being only to'permit movement of the motor means 43. l l

The preferred resiliently energized motor means 43 is located within the housing and mounting means l2, and as shown includes a T crank indicated generally by 45 which is pivotally mounted intermediate the shaft |6 within the interior compartment 46 of the housing and mounting means I2, as by a pivot screw 41 which as shown extends through a pivot bore 48 of the T crank 45 located at the junction of the depending stem arm 49 of the T crank 45 with the oppositely extending head arms 58 and thereof, the pivot screw 41 being screwed into one of the side walls 52 of the housing and mounting means l2.

Thehead arm 58 of the T crank 45 extends rearwardly from the pivot screw 41 and a resilient spring 53 has its upper preferably hook end 54 engaged with one of a plurality of apertures 55 provided adjacent the extremity of the headarm 56, and the lower preferably hook end 54' of the spring 53 is engaged with an anchor pin 56 secured in one or more of the walls of the housing and mounting means I2.

The resilient spring means 53 as shown is a helical tension spring, and tends to urge the T crank 45 in the direction of the arrow 51.

The cam and follower means 44 is interposed between the shaft l6 and the other head arm 5| of the T crank 45 of the resilient motor means 43, and the cam and follower means 44 includes a rotary disk cam 58 secured upon'the shaft Hi and preferably having a cam profile 59 as shown in Fig. 6, and against which rolls the outer periphery 66 of a roller cam follower 6| journalled on the outer end of the head arm 5| of the T crank 45.

The motor means 43 furthermore includes, within the compartment 46 of the housing and mounting means |2, a carriage block 62 which is arranged for forward and rearward reciprocation, as by a plurality of roller and slot means 63 each of which as shown includes a forward and rearwardly directed slot 64 formed in the carriage block 62, the side faces of each slot being adapted for rolling on the periphery of a roller 65 which it rotatably mounted on one of the walls 52 of the housing and mounting means l2.

Therefis provided between the carriage block 62 and, preferably the lower end of the stem arm 49 of the T crank45, pin and slot connecting means 49-|.

The reciprocating cam and back-up means 42 includes a forwardly and rearwardly extending cam and back-up bar 66 located within the interior compartment 46 of the housingand mountingmeans I2, and the rear end of the bar 66 is secured as by screws 61 upon the lower side 68 of the carriage block 62 of the motor means 43. The tucker feed means 26 includes a tucker bar 69 located within the interior compartment 46 of the housing and mounting means l2, and the rear end of the tucker bar 69 is secured as by screws upon the upper side 1| of the carriage block 62.

The forward wall 12 of the lower side portions 29 of the U housing and mounting means |2 has formed therein a forwardly and rearwardly directed opening 13 into which extends the forward end 14 of the bar 66 of the cam and backup means 42, and one side face 15 of the forward end 14 of the bar 66 has formed therein a sidewardly opening cam slot 16.

The lower end of the anvil means I3 is provided with a downwardly extending tongue. 11 extending opposite the side face 15 of the bar 66 in which the cam slot 16 is formed and a cam follower pin 18 is secured in and extends from the tongue 11 of the anvil means l3 into the slot 16 of the cam and back-up bar 66.

The forward end 14 of the cam and back-up bar 66 is enlarged as best shown in Figs. 2, 3, and 4, forming the back-up means or head 33 so that its upper face 19 is arranged for reciprocation into and out of abutment with the lower face 89 of the anvil means l3.

The anvil means I3 includes preferably a shown an elongated anvil bar 8| upon which is formed the upper clinching anvil face 3| and the lower abutment face 89, and from which as shown integrally extends the tongue 11.

The upper end of the anvil bar also preferably includes as shown a forward nut stop 82 extending above the clinching face 3|.

At one side of the anvil bar 8|, a preferably stationary nut side clamp jaw 83 is provided, and at the other side of the anvil bar 8|, a yieldable nut side clamp jaw 84 is operatively mounted as by pinand aperture means 85 and tension spring means 86. 3 c

As shown, the peen plunger means l4 includes a vertically elongated plunger cylinder 81 having a downwardly opening bore 88 formed therein, the cylinder 81 reciprocating within and between the inner faces of the guide tube portions 34 of the upper side portions 30 of the U housing and mounting means l2 and including the upper end 31 which is provided with the operative connection 36 with the shaft 5, as aforesaid.

Within the lower end of the downwardly opening bore 88 of the plunger cylinder 81, a plunger head 89 is mounted for limited slidable movement therein, as by oppositely arranged pin and slot means 96 interposed between side wall portions of the plunger cylinder 81 and the plunger head 89, as best shown in Figs. 3 and 4.

A compression spring 9| is located within the bore of the cylinder 81 and reacts against the upper end face 92 of the plunger head89 and the opposite endface 93 of the cylinder bore 82, whereby limited yielding movement of the plunger head 89 with respect to the plunger cylinder 81 is permitted.

The plunger head 89 preferably has removably mountedtherein a plunger clinching die 94 having the clinching faces 32 formed, thereon; and

the spring pressed yieldable mounting of the JI'henut; guide means; 95 .is :arranged to receive at. ,0 n'e; side;- nuts from-thadelivery; trough; 99

of thearhopper HIE 3118125," a:S ShQWn,',a,t the rear" o-ftheqnut side guide bar means 98 adjacent the.

rear'wall Inn of the u, throat 21- of the housing and-mounting means 12,-and-the-U throat rear wall I00 has formed therein a forwardly and As best show-n in Figg 8, the bottom plate 96 of the nut guide means; 95 is preferably removably secured upon the lower side portions 29 of the p U housing and; mounting: means a I 2-, as by beingformedwith a U crosstsectionyhaving outer depending legs l02-and iflirwhich fit about a to-ngue llldi of thelower sideportions 29; of the U housing and mountingmeansl2 and which are securedthereto as by transversely extending scre tmeans: I05.;

The nut side guidebar means-:91 is .lpreferably asshownremovably secured upon theupperface of the slide pplatefit; as by screw means I06 for permitting removal of the guide bar means 91 in icase of'jarnming of the machine I 0.

The nut side guide bar-.meansz98is preferablyas-lshown provided withfront and rear spring pressed nut-clamping'plunger means I B'Land I 08'.

The; guide portions 4I-for-y the anvilmeans l3 preferably as shown include oppositely spaced sidernembers. I09 and H0, the upper ends of which are arranged to support a sheet of: material S gthereon when the anvil means i3-is in retarded-or Down-position, as shown inFigs. 4 and5. v a g The cam slot 16 of the bar 66 includes a for ward1portionl6+l at an angle,. preferably at airightiangle with-the directionofmovement of the: anvil means IS; an intermediate portion 15 -2 sloping with respect to the forward portion l6|, anda rear portion 163. parallel with the forward portion.Hi-4;v the; cam slot portions 16 t, 16 -2. and "I6'3 having adjacent ends: communicatingwith each other, a

The machine In is shown- .as applying. the clinch-on nuts N which include the improve- -ments of my application for U.. S, LettersiPatent for Clinch-om nuts'xand method; of. forming a the. same, 7 Serial 'No., 140,217; each nut, N including; an enlarged .head. or seat portion, N-.-il I from which extendsjalreduced clinch-0n wall or shank portion l' Ij2;v each nut N'having athreadedbore Nj-'-3 which terminates at? the clinch-on 1 end" in aitapered portion N-,-4'." v

The machine Ill ishowever adapted'for' applying other forms of clinch-onnuts or-s'imilar, articlesto'sheet' metal" S andithe like i v 'In'th'e op'erationof,th'emachinel llljthe hopper means25 delivers a succession of'nuts Nand the like into the rearendof theguide means 95 from where the nuts" N are successively pushed forwardby' successive reciprocations of the tucker bar 69 so" as to'fill the guidemeansefi; as best The front and rear spring pressed clamping 'plunger-meahs *llll and H18 serve to yi'eldingly maintain the*nuts--N-- in-the guidemeans 95 in o front'and rearabutment with each other so-that the forward nuts Niiinthe guide means 95 are successively: fed upon-1 the clinchingiifacei 3| of theharn'lil'means.i3; A V n I t Theipartszofzthe; machine slll: areshownjnaFigs.

end of the nut" guide means 65 means :13 :iniit s extreme- Up; position of displace:

ment, and backedi-upi-byf the back-up portion 331.

of thecam and back-up bar 66, ready for asheet of material having a suitable aperture formed therein'to be placed on the shank N-2 of the nut- N located'upon the clinching end face 3| of theanvilfmeans I3 with its forward end face inabutment with the stop 82 and with its side faces releasably clamped' bythe clamp jaws 83 and 84. Inthis positionpthe low portion of the camifiil toward the observer in Fig. 2'.

When a sheet of material S having a suitable aperture formed therein isapplied to the nut N located on the clinching'face 3! of the anvil means l3, and the parts of the machine l0 erein the relative position shown in Figs. 2 and 3, and theflefoot pedal is depressed, the shaft It makes one 1 revolution counterclockwise as seen in Fig; 3; first causing descent of thepeen plunger means l4-so as to clinch the nut Non the opposite clinching. face of the anvil means l3'0nto the; sheet S, and at the same time causing rotation of the disk cam 58, the high portion a of which during the descent of the plunger means M maintains the-T crank 45 in its position with .1; tucker bar 69. secured thereto, so as to simultane usly-retract the anvil means l3 away from the plunger means M by the actionof the cam slot 16 on the cam-follower pin 18 as the cam bar 66; advances, and feed another nut N upon; the retracted upper clinching surface 31 of the "anvil means l3 beneath the nut N which has just been clinched ontosthe sheet S, the sheets being supported. onthe upper endsof the anvil means side guides I69 and H0 as shown in Figs. 4 and 5;

Three-quarters rotation of, the shaft [6 serves to change the relative positions of theparts of themachine It] from those shown in Figs. 2 and 3"to those shownin Fig. 4; and a further onequarter'rotation of the shaft lb serves to return the parts of the machine to the relative positions shownin Figs. Z and 3; underwhich conditions the nut N applied to the sheet S is supported on theupper end of the following nut N fedonto the clinching face 3| of the anvil means l3 by operation of the tucker means 26, as shown in Fig. 9.

The final position of the sheet S with the clinch-oninut N applied thereto supported on the-lower nut N as showniin Fig. 9, permits free removal of' the sheet S and applied nut N from the machine 19, without requiring the operator to fight the machine'in order to remove the sheet S with the appliednut N thereon, as is the case in certain other forms of machines for applying clinch-onnuts.

All the reciprocating parts of the machine ll] includingthe presentimprovements as above described, have .i shorty-stroke reciprocations, thus permitting high speed operation of the machine; andtheiassociation ofrthe plunger reciprocating means with its'separate motor drive, and the anvil andtucker feed actuating means with their independentmotor drive is such as to minimize both frequency and severity of jamming," a result The embodiments of the .improved apparatus for feeding and clinching clinch-on nuts and the like illustrated and described herein attain the above stated objects of the invention, but are by way of example, and the scope of the present invention is not limited to the same or to the particular details thereof, but is commensurate with any and all novel subject matter contained herein, and which may at any time properly under the patent laws be set forth in claims hereof or which may originate herein, the elements of any of the claims being intended to include their reasonable equivalents.

I claim:

1. In a machine of the character described, an anvil, a plunger, said anvil and said plunger being reciprooable toward and away from each other and having opposed work engaging surfaces, a rotatable shaft, crank means on said shaft and operable to actuate said plunger, a reciprocable member, means carried by said reciprocable member to actuate said anvil, means carried by said reciprocable member to feed clinch-on nuts or the like onto said anvil, cam

means on said shaft and operable to reciprocate said member, and means operatively connecting said cam means and said reciprocable member.

2. In a machine of the character described, an anvil for supporting clinch-on nuts or the like, a plunger, said anvil and said plunger being reciprocable toward. and away from each other and having opposed surfaces, means providing a supporting surface for clinch-on nuts or the like, said anvil being movable to one position wherein its said surface is substantially in the.

same plane with said supporting surface, a reciprocable carrier member, a rod member carried by said carrier member below said nut supporting surface and having a cam surface operable to move said anvil from said one position toward said plunger, a push rod carried by said reciprocable member above said nut supporting surface and operable to successively position the nuts on said anvil surface, means to reciprocate settable member from said channel onto said anvil, and a connection between said anvil moving means and said feeding means" to actuatesaid feedingmeans to feed when said anvil reaches said plunger, and means operatively connecting said last-named means and said reciprocable member.

3. In a machine of the character described, an anvil, a plunger, said anvil and said plunger having opposed surfaces and movable toward and away from each other, a shaft, crank means on said shaft operable to reciprocate said plunger, cam means on said shaft, a lever arranged to pivot in one direction by said cam means, a reciprocable member connected to and movable in one direction by said lever upon pivoting of said lever by said cam means, cam means car-- riedby said reciprocable member and operable to move said anvil toward said plunger, and spring means operable on said lever to pivot said lever in the opposite direction.

4. A machine of the character described, comprising a set, means to operate said set, an anvil movable into and out of operative relation with said set, a channel for feeding upsettable members onto said anvil, means to reciprocate said anvil into and out of operative relation with said set, said anvil in its retracted position being substantially in alignment with the bottom of said channel, a source of upsettable members communicating with said channel, means to feed a single upsettable member from said source into said channel and at the same time another upsaid channel from said source and another upsettable member from said channel onto said 5. In a machine of the character described, an anvil for supporting clinch-on nuts or the like, a ram, said anvil and ram being reciprocable toward and away from each other and having 0pposed surfaces, means providing a supporting surface for clinch-on nuts or the like, said anvil being movable to one position wherein the said surface is substantially in the same plane with said supporting surface, means below said nut supporting surface and having a cam surface operable to move said anvil from said one position toward said ram, a feeding means adjacent said nut supporting surface and operable to successively position the nuts or the like onto said anvil surface, and a connection between said anvil moving means and said feeding means to actuate said feeding means to position, when said anvil reaches said one position, a clinch-on nut or the like on said anvil.

6. A machine of the character described, comprising a set, means to operate said set, an anvil movable into and out of operative relation with said set, an anvil guiding slideway along which said anvil moves, a channel for feeding upsettable members, communicating with said slideway, means to reciprocate said anvil in said slideway into and out of operative relation with said set, said anvil in its retracted position being substantially in alignment with the bottom of said channel, a source of upsettable members communicating with said channel, means to feed a single upsettable member from said channel onto said anvil, and at the same time to feed another upsettable member from said source into said channel, and a connection between said anvil moving means and said feeding means to actuate said feeding means to feed, when said anvil reaches its retracted position, an upsettable member into said channel from said source and another upsettable member from said channel onto said anvil.

7. A machine of the character described, comprising a set, means to operate said set, an anvil movable into and out of operative relation with said set, an anvil guiding slideway in which said anvil moves, upsettable member conducting means for presenting upsettable members adjacent the said slideway, said anvil in retracted position being at least in clearing relation to the plane of said conducting means, means to move said anvil into and out of operative relation with said set, means to feed a single upsettable member from said conducting means into said slideway for disposition on said anvil, and an operative, coordinating connection between said anvil moving means and said feeding means to actuate said feeding means to feed, when said anvil has cleared the plane of said conductor in its retracting movement, an upsettable member into said slideway for disposition on said anvil.

8. A machine of the character described comprising a set, means to operate said set, an anvil movable into and out of operative relation with said set, means providing a conductor for upsettable members for positioning them adjacent the path of said anvil, means to reciprocate said anvil into and out of operative relation with said set, said; anvil in its retracted position-being :clear of the plane of --said conducting means,

means to feed an upsettable member from said conducting means onto said anvil; a connection between said anvil moving means andieeding means to actuate said feeding meansto feed, when said'anvil reaches its retracted position, 

